Title:
【発明の名称】原油の脱塩方法
Document Type and Number:
Japanese Patent JPH0633361
Kind Code:
B2
Abstract:
The salt content of a heavy crude oil is reduced by a method which comprises the steps of (a) mixing 70 to 98% by volume of a heavy crude oil having a viscosity in the range 200 to 250,000 mPa.s at the mixing temperature with 30 to 2% by volume of an aqueous solution of an emulsifying surfactant or an alkali, percentages being expressed as percentages by volume of the total mixture; mixing being effected under low shear conditions in the range 10 to 1,000 reciprocal seconds, in such manner that an HIPR emulsion is formed comprising distorted oil droplets having mean droplet diameters in the range 2 to 50 micron separated by aqueous films, (b) breaking the resulting emulsion, and (c) separating the resulting mixture into a layer of relatively salt-free oil and a layer of relatively salt-enhanced water. Heavy crude oils are desalted by the above method without requiring a hydrocarbon diluent. The high surface area of the aqueous lamellae in the HIPR emulsion increases the probability of contacts occurring between them and the droplets of salt water originally present in the crude oil, and thus leads to greater desalting efficiency.
Inventors:
MARIA IZABERA BURISENO
MARIA RUIZA CHIRINOSU
ARISUTEIAA SUTEYUWAATO TEIRAA
SUPENSAA EDOIN TEIRAA
MARIA RUIZA CHIRINOSU
ARISUTEIAA SUTEYUWAATO TEIRAA
SUPENSAA EDOIN TEIRAA
Application Number:
JP27360585A
Publication Date:
May 02, 1994
Filing Date:
December 06, 1985
Export Citation:
Assignee:
INTEBETSUPU SA
BURITEITSUSHU PITOROORIAMU CO PLC ZA
BURITEITSUSHU PITOROORIAMU CO PLC ZA
International Classes:
B01D17/05; B01D17/00; B01D17/04; C10G19/02; C10G31/08; C10G33/04; C10G33/06; (IPC1-7): C10G33/04; C10G19/02; C10G33/06
Domestic Patent References:
| JP59152991A |
Attorney, Agent or Firm:
Haruo Hamada
Next Patent: PRODUCTION OF SPECIAL FABRIC